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VA40 used for hydrogen flow measurement in tungsten production

Local and direct reading of hydrogen flow into reactor furnaces without auxiliary power

Low flow measurement at only 40 mbarg / 0.58 psig

VA40 variable area flowmeters measure hydrogen flow in tungsten production

A New York based tungsten producer uses VA40 variable area flowmeters for hydrogen flow measurement in tungsten powder production: in the last production step, hot tungsten oxid at a temperature of 800 °C/ 1472 °F is reduced in a hydrogen atmosphere: tungsten oxide and hydrogen react to tungsten and water.

Here, the producer needed to measure the continuous hydrogen flow to the reactor furnaces at only 40 mbarg / 0.58 psig. Since a local flow indication by visual reading of float height was sufficient, he chose variable area flowmeter VA40 with glass tube as a simple, reliable and cost effective measurement solution. Although available options for VA40 include limit switches or 4...20mA signal output, the 14 flowmeters hydrogen supply lines were installed as pure mechanical flowmeters without the need for auxiliary power.

About KROHNE

KROHNE is a full-service provider for process measuring technology for the measurement of flow, mass flow, level, pressure and temperature as well as analytical tasks. Founded in 1921 and headquartered in Duisburg, Germany, the company employs over 3,700 people all over the world and is present on all continents. KROHNE stands for innovation and maximum product quality and is one of the market leaders in industrial process measuring technology.